I was just reminded that a while ago, I started a “Twitter Favourites” set on my Flickr account. I was finding that there were some real Twitter gems that I wanted to keep a hold of.
So now, any funny or memorable quotes that I see on Twitter get screen grabbed directly to Flickr:
http://www.flickr.com/photos/fuchsiashock/sets/72157604373466543/
Do a search for “screen shot upload to flickr” or similar and you’ll be able to track down some software giving you more or less one-click uploads to flickr.